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Bogle, Rian C.
U.S. Geological Survey, Western Region, Southwest area, Geography discipline
GPS measurement, Aerial photography, Erosion, Geography, Geomorphology, Hazards, Land surface characteristics, Lidar, Sand deposits, Sediment transport, Topography, Wind, Dunes

PDF Monitoring and analysis of sand dune movement and growth on the Navajo Nation, southwestern United States [More info]
We combine long-term records from aerial photographs, detailed mapping using survey-grade GPS, and ground-based lidar with meteorological monitoring. Sand dune migration rates are currently about 35 meters per year.
PDF Using terrestrial light detection and ranging (lidar) technology for land-surface analysis in the Southwest [More info]
Tripod-mounted lidar makes it inexpensive and efficient to measure and map geographic features that change with time, such as sand dunes and erosional features, and soil microtopography.
Improved ground-based remote-sensing systems help monitor plant response to climate and other changes [More info]
Scientists at the U.S. Geological Survey are improving and developing new ground-based remote-sensing instruments and techniques to study how Earth’s vegetation responds to changing climates. Do seasonal grasslands and